Query: NC_014657:1518721 Caldicellulosiruptor owensensis OL chromosome, complete genome Lineage: Caldicellulosiruptor owensensis; Caldicellulosiruptor; Thermoanaerobacterales Family III; Thermoanaerobacterales; Firmicutes; Bacteria General Information: Country: USA; Environment: Hot spring; Isolation: Freshwater sediment; Temp: Hyperthermophile; Temp: 79C; Isolation: freshwater sediment, Owens Lake, California. Caldicellulosiruptor owensensis is a thermphilic gram positive bacterium. This organism produces a thermostable xylanase which may have industrial uses.
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General Information: This symbiotic and thermophilic bacterium was discovered by screening for thermostable tryptanophases in Japanese compost. Cultured growth of this organism requires the presence of another bacterial species, such as a Bacillus or Escherichia coli, which provides diffusable metabolites required for its growth. Pure cultures can be obtained by growing Symbiobacterium thermophilum in a bioreactor, separated from its symbiotic counterpart by a dialysis membrane. Because of its symbiotic nature, it cannot be cultured with conventional methods. Despite a negative reaction for gram stain, this species is placed with the gram-positive bacteria based on 16s phylogenetic analysis.